Question 15: In a Compton scattering experiment, an electron is accelerated straight in the direction of incident x-ray photon. Which way does the scattered photon…
Here are some explanatory notes that can help us better understand the problem of twin paradox. Alternative method for finding the age of Zarak:Zarak’s age…
ٹون پیراڈوکس دس سال پہلے آپ نے موٹرسايیکل خریدی تھی جو کہ بدقسمتی سے اتنی اچھی نہیں تھی اور گزرے دس سالوں میں آپ نے…
Question 6: All objects radiate energy. Explain why, then, are we not able to see objects in a dark room? Objects kept in the dark…
Question 7: If photoelectric effect is observed for some metal can you conclude that the effect will also be observed for another metal under the…
Question 8: Explain why it is impossible for a particle with rest mass to move faster than the speed of light. ANSWER According to special…
Question 9: Use photon model to explain why ultraviolet is harmful to your skin while visible light is not? ANSWER The harmfulness of radiation depends…
Question 10: Why the annihilation of an electron and positron creates a pair of photons a d not a single photon? ANSWER When a particle…
Question 12: Explain why we can experimentally observe the wave-like properties of electron but not of a billiard ball? ANSWER de’ Broglie wavelength associated with…
Question No Question Question 1 Imagine a world in which c = 50 m/s. How would the everyday events appear to us?See Answer Question 2…